1. Department of Medical MicrobiologyCenter for Infection and Immunity AmsterdamAmsterdamThe Netherlands
2. Laboratory of Experimental Gastroenterology and HepatologyAmsterdamThe Netherlands
3. Department of Medical BiochemistryAcademic Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
4. Department of Medical Microbiology and Infectious DiseasesVrije Universiteit Medical CenterAmsterdamThe Netherlands